/*
 *  Copyright (C) 2010 glauco
 * 
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 * 
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 * 
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.balisunrise.common.defaults;

import java.io.Serializable;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import org.balisunrise.common.EntityHolder;
import org.balisunrise.common.abstracts.AbstractBasic;

/**
 * Implementação de EntityHolder.
 *
 * @author glauco
 * @see EntityHolder
 */
public class DefaultEntityHolder extends AbstractBasic implements EntityHolder{

    private Serializable entity;

    @Override
    public Serializable getEntity() {
        return entity;
    }

    @Override
    public void setEntity(Serializable entity) {
        Serializable oldEntity = this.entity;
        this.entity = entity;
        changeSupport.firePropertyChange(PROP_ENTITY, oldEntity, entity);
    }

    @Override
    public void updateFromSource(Serializable source, String property) {

        Class c = source.getClass();

        String methodName = "get" + property.substring(0, 1).toUpperCase() +
                property.substring(1);

        try{
            Method m = c.getMethod(methodName);
            setEntity((Serializable) m.invoke(source));
        }catch(NoSuchMethodException nsmex){
            System.out.println(
                    "Falha em DefaultEntityContainer.updateFromSource,"
                    + " NoSuchMethodException: " + nsmex.getMessage());
        }catch(SecurityException sex){
            System.out.println(
                    "Falha em DefaultEntityContainer.updateFromSource,"
                    + " SecurityException: " + sex.getMessage());
        }catch(IllegalAccessException iaex){
            System.out.println(
                    "Falha em DefaultEntityContainer.updateFromSource,"
                    + " IllegalAccessException: " + iaex.getMessage());
        }catch(IllegalArgumentException iaex){
            System.out.println(
                    "Falha em DefaultEntityContainer.updateFromSource,"
                    + " IllegalArgumentException: " + iaex.getMessage());
        }catch(InvocationTargetException itex){
            System.out.println(
                    "Falha em DefaultEntityContainer.updateFromSource,"
                    + " InvocationTargetException: " + itex.getMessage());
        }
    }

}
